66823741795 has 8 divisors (see below), whose sum is σ = 80426440224. Its totient is φ = 53300360064.

The previous prime is 66823741781. The next prime is 66823741819. The reversal of 66823741795 is 59714732866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66823741795 - 2¹⁷ = 66823610723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19827319 + ... + 19830688.

It is an arithmetic number, because the mean of its divisors is an integer number (10053305028).

Almost surely, 2^66823741795 is an apocalyptic number.

66823741795 is a deficient number, since it is larger than the sum of its proper divisors (13602698429).

66823741795 is a wasteful number, since it uses less digits than its factorization.

66823741795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39658349.

The product of its digits is 15240960, while the sum is 58.

The spelling of 66823741795 in words is "sixty-six billion, eight hundred twenty-three million, seven hundred forty-one thousand, seven hundred ninety-five".